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Timer0 not working

 
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dDelage



Joined: 10 Sep 2022
Posts: 20

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Timer0 not working
PostPosted: Wed Nov 02, 2022 11:18 am     Reply with quote

Code:
#include  <16F18855.H>     //includes #device spec
#use delay (INTERNAL=4MHZ)   //Says INTERNAL OSCILLATOR is 4MHz

#Int_Timer0
void Timer0Int () {
   output_toggle(Pin_B2); //led flash
}

main () {
   Setup_Timer_0 (T0_INTERNAL | T0_DIV_8); //
   Set_Timer0(0);
   output_high(Pin_B1);  //led on
   while (1) {   }
}


The fixed led B1 comes on, the flashing led B2 stays off. This is about as simple as I can make it. If I make B2 always on, and B1 toggle, then B2 stays on and B1 never comes on. This is a PPS chip but I see nothing related to that. Losing my hair though that's probably more related to the radiation and chemo.
temtronic



Joined: 01 Jul 2010
Posts: 9245
Location: Greensville,Ontario

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PostPosted: Wed Nov 02, 2022 11:33 am     Reply with quote

Maybe I'm having a 'senior's moment' but I'd say you have to ENABLE the interrupt ??
dDelage



Joined: 10 Sep 2022
Posts: 20

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Timer0 not working
PostPosted: Wed Nov 02, 2022 2:12 pm     Reply with quote

Now that's embarrassing! 1K lines of code, adding a feature and forget a simple requirement. Been using PIC chips for 20 years! Too soon old, too late smart.
Thanks,
Dave
temtronic



Joined: 01 Jul 2010
Posts: 9245
Location: Greensville,Ontario

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PostPosted: Wed Nov 02, 2022 3:15 pm     Reply with quote

Look on the bright side....it was easy for me to spot ! I remember having 15 minutes to 'mull over' my 'sillies', while waiting for the UV eraser to work magic on the PIC16C84, that was NEW ..once upon a time........
Ttelmah



Joined: 11 Mar 2010
Posts: 19551

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PostPosted: Thu Nov 03, 2022 2:12 am     Reply with quote

A 'duh' moment.
They happen!... Sad
temtronic



Joined: 01 Jul 2010
Posts: 9245
Location: Greensville,Ontario

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PostPosted: Thu Nov 03, 2022 6:55 am     Reply with quote

seems the older I get..the MORE they happen Sad
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